Daniel Frey <djqf...@gmail.com> wrote: > So I updated my nvidia driver and got the following: > > [ 75.557567] nvidia-nvlink: Nvlink Core is being initialized, major > device number 247 > [ 75.557583] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 375.26 > Thu Dec 8 18:36:43 PST 2016 (using threaded interrupts) > [ 75.701289] nvidia-modeset: Loading NVIDIA Kernel Mode Setting > Driver for UNIX platforms 375.26 Thu Dec 8 18:04:14 PST 2016 > [ 75.769472] nvidia_drm: Unknown symbol > drm_atomic_helper_plane_destroy_state (err 0) > [ 75.769479] nvidia_drm: Unknown symbol drm_kms_helper_poll_fini > (err 0) [ 75.769491] nvidia_drm: Unknown symbol > drm_kms_helper_poll_disable (err 0) > [ 75.769497] nvidia_drm: Unknown symbol drm_kms_helper_poll_init > (err 0) [ 75.769514] nvidia_drm: Unknown symbol > drm_atomic_helper_disable_plane (err 0) > [ 75.769527] nvidia_drm: Unknown symbol > drm_atomic_helper_cleanup_planes (err 0) > [ 75.769531] nvidia_drm: Unknown symbol drm_helper_hpd_irq_event > (err 0) [ 75.769538] nvidia_drm: Unknown symbol > drm_atomic_helper_crtc_destroy_state (err 0) > [ 75.769565] nvidia_drm: Unknown symbol drm_atomic_helper_check > (err 0) [ 75.769567] nvidia_drm: Unknown symbol > drm_atomic_helper_connector_destroy_state (err 0) > [ 75.769573] nvidia_drm: Unknown symbol > drm_atomic_helper_plane_duplicate_state (err 0) > [ 75.769603] nvidia_drm: Unknown symbol > drm_atomic_helper_plane_reset (err 0) > [ 75.769606] nvidia_drm: Unknown symbol > drm_atomic_helper_prepare_planes (err 0) > [ 75.769610] nvidia_drm: Unknown symbol > drm_helper_mode_fill_fb_struct (err 0) > [ 75.769622] nvidia_drm: Unknown symbol drm_atomic_helper_set_config > (err 0) > [ 75.769624] nvidia_drm: Unknown symbol > drm_atomic_helper_connector_duplicate_state (err 0) > [ 75.769630] nvidia_drm: Unknown symbol drm_atomic_helper_crtc_reset > (err 0) > [ 75.769636] nvidia_drm: Unknown symbol drm_kms_helper_hotplug_event > (err 0) > [ 75.769644] nvidia_drm: Unknown symbol drm_atomic_helper_swap_state > (err 0) > [ 75.769646] nvidia_drm: Unknown symbol drm_atomic_helper_page_flip > (err 0) > [ 75.769648] nvidia_drm: Unknown symbol > drm_atomic_helper_connector_reset (err 0) > [ 75.769653] nvidia_drm: Unknown symbol > drm_atomic_helper_crtc_duplicate_state (err 0) > [ 75.769656] nvidia_drm: Unknown symbol > drm_atomic_helper_update_plane (err 0) > > I've traced this to needing KMS helper support in the kernel. > > For the life of me, I can't find it to enable it. When searching the > kernel, it shows up but doesn't say exactly where it is. > > Surely someone else has run across this and has a way to enable: > > CONFIG_DRM_KMS_HELPER > CONFIG_DRM_KMS_FB_HELPER > CONFIG_DRM_FBDEV_EMULATION > > ?? > > I am thinking it needs something as a prerequisite but I can't grok > that line in the kernel. > > Dan
Make sure that you have also enabled CONFIG_DRM. CONFIG_DRM=y CONFIG_DRM_KMS_HELPER=y CONFIG_DRM_KMS_FB_HELPER=y CONFIG_DRM_FBDEV_EMULATION=y If you use "make menuconfig" you can activate these settings by selecting: Device Drivers -> Graphics support -> Direct Rendering Manager -> Enable legacy fbdev support for your modesetting driver -- Regards wabe
